476172-57-3Relevant academic research and scientific papers
The preparation and coordination chemistry of phosphorus(III) derivatives of piperazine and homopiperazine
Rodriguez I Zubiri,Slawin, Alexandra M.Z.,Wainwright, Matthew,Woollins, J.Derek
, p. 1729 - 1736 (2008/10/08)
Reaction of piperazine or homopiperazine with R2PCl [R2 = Ph2, OC2H4O, OC6H4O] gives six new bidentate phosphines. Simple bis-chelate and bridging complexes with demonstrative Mo(0), Pd(II), Pt(II) and Ru(II) centres are reported. The crystal structures of Ph2P(O)N(C2H4)2P(O) Ph2, cis-[PdCl2{Ph2PN(C2 H4)2NPPh2}] (7) and cis-[PtCl2{Ph2PN(C5H10) NPPh2}][PtcodCl2]2 (15) are reported. In Ph2P(O)N(C2H4)2P(O)Ph2 the central N2C4 ring has a chair conformation and the P=O groups are trans. In 7 the piperazine backbone results in P-Pd-P bite angle of approximately 95° whilst in 15 the homopiperazine backbone enlarges the bite angle to 97°.
